HIGH-RESOLUTION IMAGING OF BETELGEUSE AND MIRA

被引：114

作者：

WILSON, RW

BALDWIN, JE

BUSCHER, DF

WARNER, PJ

机构：

[1] Mullard Radio Astronomy Observatory, Cavendish Laboratory, Madingley Road, Cambridge

[2] US Naval Observatory, bldg 52, 34th and Massachusetts, NW, Washington, DC

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1992年 / 257卷 / 03期

关键词：

TECHNIQUES; INTERFEROMETRIC; STARS; GIANT; IMAGING; INDIVIDUAL; BETELGEUSE; MIRA;

D O I：

10.1093/mnras/257.3.369

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Diffraction-limited images have been made of the M giant stars alpha Orionis (Betelgeuse) and o Ceti (Mira), using the non-redundant masking method at the 4.2-m William Herschel Telescope, for wavelengths between 546 and 710 nm. The brightness distribution for the surface of Betelgeuse is non-uniform, and has shown large changes over a period of 22 months. The disc of Mira is significantly elongated along position angle 120-degrees, and there is evidence that the radial intensity profile is approximately Gaussian.

引用

页码：369 / 376

页数：8

共 14 条

[1] DIFFRACTION-LIMITED SPATIAL-RESOLUTION OF CIRCUMSTELLAR DUST SHELLS AT 10 MICRONS [J].